How to enable animation for Eevee at this early stage on Mac
Ok figure it out myself, on the Terminal:

cd /Applications/Blender
./blender.app/Contents/MacOS/blender --enable-copy-on-write




cd /Users/username/Downloads/blender-2.80.0-git20180507.e3d30ffb920-x86_64
./blender.app/Contents/MacOS/blender --enable-copy-on-write